* removed boost dependency in the code
* added version requirement for libfsdetcore

- fixed writing issue on NXWrapper.h
- added unittests for file writing

- changing from column-major order to row-major order is moved to different place. It's been done later.
- file writing starts once a particular number of images are received first.
- modify test to track the bug of frame number jumping

- fixed train builder format issues
- added example to test udp packages
- added digital and analog live image

It is not working with cmake 2.8 on Debian 8